Make Analysis indicator texts tranlateable

Problem/Motivation

Hello everyone, I have a small request.

Jim Birch has proposed[#3498770] I think this is a good idea because I like the module. Or rather, I appreciate what it does for people who don't yet know much about the subject of Search Engine Optimisation.

As co-maintainer of the German translation for Drupal, it is important to me that a translation is available for all modules that we can use in Drupal. This is also the case for this module and the suggestion to include the module in the SEO tools recipe for Drupal CMS reminded me that I have to check again whether the module is still 100% translated.

On closer inspection, I unfortunately noticed that the main function of the module (the SEO traffic light) or whatever you want to call the SEO Analysis. cannot be localized at all. The screenshot above shows this quite well.

As already mentioned, I appreciate this module and would therefore be very happy if you would take on the task and make the points within the content analysis translatable. I can imagine this is no easy task, so it has not been implemented so far. However, the module has been around for 6 years now. Slowly but surely, the main function of the module should be made translatable.

I am aware that the implementation of the whole thing can't be that easy. Otherwise, it would have been standard since the first Drupal 7 beta of the module.

If it is possible to implement this somehow, that would be a nice thing.

Thank you.

Steps to reproduce

Install Drupal
Install the Module
Install at least 1 more Language besides English (recommend German, because all Strings related to this module are translated for this particular language right now.)
Set up the Real Time SEO Field for at least one content type
Add content of the type containing the field.

The actual result is that everything related to the module is translated, excluding the SEO traffic lights text)

The expected result would be, that the SEO Analyses traffic light text should be translated as well,
but strings behind the quality indicators are not available as strings on l.d.o for any language right now.

Proposed resolution

rewrite the code to make sure, the main feature of this module is translateable

Remaining tasks

create a patch and a new release

User interface changes

TBD

API changes

TBD

Data model changes

TBD